Discourse markers have variant degrees of semantic meaning; they are utterance-initial; and they can signal a discourse relationship or signal a writerâs or a speakerâs attitude. When we are planning to write a well-organized text, cohesion and coherence must be taken into
Here are some causes of Infected Koilonychia: 1  trauma. 2  illness. 3  malnutrition. or any major metabolic condition,  chemotherapy or other damaging event.
Some infants with koilonychia do have iron deficiency, so see your baby's doctor if you notice this nail change. Vitamin B-12 deficiency can cause nail discoloration, including, brownish or blue nails or blue-black streaks not associated with ridges. Brown, black or white bands can also indicate malnutrition.